Data association information verification method and device, equipment and storage medium

The invention provides a data association information verification method and device, equipment and a storage medium, and relates to the technical field of financial cryptography. The method comprises the following steps: acquiring first data information and second data information; wherein the first data information and the second data information represent the same parameter information; according to a preset mapping relation table, mapping the first data information to obtain first polynomial ring data information, and mapping the second data information to obtain second polynomial ring data information; wherein the preset mapping relation table represents relevance between the data information and the polynomial ring data information; and verifying data association information between the first data information and the second data information according to the first polynomial ring data information and the second polynomial ring data information. By adopting the technical scheme, the problem that the consi